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Finding the Fourth Proportional to 225.09, 334.95 and 223.05

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Solution

The fourth proportional to 225.09, 334.95 and 223.05 is: 331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.09 : 334.95 = 223.05 : x
  2. Step 2: Convert to fraction form
    225.09/334.95 = 223.05/x
  3. Step 3: Cross multiply
    225.09x = 334.95 × 223.05
  4. Step 4: Simplify right side
    225.09x = 74,710.60
  5. Step 5: Solve for x
    x = 74,710.60/225.09
  6. Step 6: Final answer
    x = 331.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.